Method for drawing risk four-color map on line

Abstract

The invention discloses a method for drawing a risk four-color map on line, and relates to the technical field of map management, and the method comprises the steps: S1, selecting a GIS map and a database; s2, presetting a corresponding rule of risk levels and colors, and ensuring that corresponding colors can be accurately filled according to the risk levels of different areas when the risk four-color graph is drawn, so as to realize visual distinguishing of the risks; s3, accurately positioning the position of the enterprise in the selected GIS map; s4, drawing a graph of a certain area in the enterprise in the selected GIS map, and inputting corresponding information; s5, storing related information of the drawn regional graph in a database for subsequent query, edition and echo operation; and S6, repeating the steps S4 and S5, sequentially performing image drawing, information input and storage operation on all areas in the enterprise, and gradually constructing a complete enterprise risk four-color map. According to the invention, efficient, accurate and convenient online drawing, storage, editing and viewing functions of the enterprise risk four-color map are realized.

Description

Technical Field

[0001] The invention relates to the technical field of map management, in particular to a method for drawing a risk four-color map online. Background Art

[0002] The four-color risk map, also known as the four-color security risk distribution map, is a visualization tool used to intuitively display the risk distribution situation. It usually uses red, orange, yellow and blue to indicate major risks, major risks, general risks and low risks.

[0003] At present, many enterprises have successfully applied the risk four-color map to actual safety risk management. By gridding all operating units and marking the risk level of each grid with red, orange, yellow and blue in the plant layout, enterprises can clearly see the distribution of safety risks in different areas.

[0004] However, the existing four-color risk maps are usually in the form of paper or photos. If you want to modify the risk level or other information of a grid area, you need to redraw the entire four-color risk map, which is inconvenient to update. In addition, the paper version of the four-color risk map has poor interactivity and can only display static information. It cannot be zoomed in or out, and it is impossible to view surrounding map information. In modern safety risk management, regional risk information often needs to be exchanged and shared with databases or monitoring systems. The paper version of the four-color risk map has obvious limitations in this regard. Summary of the invention

[0005] In view of the needs and shortcomings of current technological development, the present invention provides a method for drawing a risk four-color map online, aiming to achieve fast and accurate drawing of the risk four-color map through a simplified operation process and an intelligent color filling function, and at the same time, the drawn risk four-color map can be echoed.

[0006] The method for drawing a risk four-color map online of the present invention adopts the following technical solution to solve the above technical problems:

[0007] A method for drawing a risk four-color map online comprises the following steps:

[0008] S1. Select GIS maps and databases;

[0009] S2. Preset the corresponding rules between risk levels and colors to ensure that when drawing the four-color risk map, the corresponding colors can be accurately filled according to the risk levels of different areas to achieve visual differentiation of risks;

[0010] S3. Accurately locate the enterprise location in the selected GIS map;

[0011] S4. Draw a graph of a certain area in the enterprise in the selected GIS map and enter the corresponding information;

[0012] S5, saving the relevant information of the drawn regional graphics to the database for subsequent query, editing and echo operations;

[0013] S6. Repeat steps S4 and S5, perform image drawing, information input and saving operations for all areas within the enterprise in turn, and gradually construct a complete four-color enterprise risk map.

[0014] Optionally, the step S1 involved specifically includes:

[0015] Choose a GIS map with the function of customizing graphics and freely selecting colors to meet the needs of drawing graphics and color labeling for drawing risk four-color maps;

[0016] A database is selected based on the characteristics of the data and management requirements to store the relevant information generated in the process of drawing the four-color risk map, including regional graphic information, risk level information and regional name information.

[0017] Preferably, the databases involved include relational databases and non-relational databases;

[0018] Relational databases store structured data. By creating data tables, the vertex coordinates of regional graphics, risk levels, and regional name information are stored in different fields, making it easier to perform complex queries and data association operations.

[0019] Non-relational databases store semi-structured or unstructured data and store all information about an area in the form of documents. A document contains the area graphic information, risk level information, and area name information of an area.

[0020] Optionally, execute step S2 and preset the correspondence rules between risk levels and colors, specifically: major risk corresponds to red, greater risk corresponds to orange, general risk corresponds to yellow, and low risk corresponds to blue.

[0021] Optionally, when executing step S3,

[0022] The user enters the detailed address of the enterprise in the GIS map, and uses the positioning function of the GIS map to convert the address information into coordinates on the GIS map through the built-in address resolution service, so as to accurately find the location of the enterprise;

[0023] Alternatively, the user enters the longitude and latitude coordinate information of the enterprise into the GIS map. After the GIS map verifies the format of the coordinate information, it accurately locates the enterprise and provides a benchmark for the subsequent drawing of the regional image.

[0024] Optionally, the step S4 involved specifically includes:

[0025] S4.1. Based on the actual shape of a certain area within the enterprise, use the drawing tools provided by the GIS map to accurately draw a graphic that is identical to the area, ensuring that the graphic accurately reflects the actual outline of the area;

[0026] S4.2. According to the actual risk situation of the area, a matching risk level is selected from the preset risk levels;

[0027] S4.3. Enter a name and related information for the drawn area graphic;

[0028] S4.4. Calculate the center of gravity coordinates of the drawn graphics by using the center of gravity calculation formulas (1) and (2). Bind the calculated center of gravity coordinates to the input area name, thereby achieving a one-to-one correspondence between the area name and the area.

[0029] X=(X 1 +X 2 +…+X i +…+X n ) / n formula (1)

[0030] Y=(Y 1 +Y 2 +…+Y i +…+Y n ) / n formula (2)

[0031] In the formula, (X i ,Y i ) is the coordinate value of any vertex of the drawn figure, and (X,Y) is the coordinate of the center of gravity of the drawn figure.

[0032] Optionally, the step S5 involved specifically includes:

[0033] S5.1. Arrange the information related to the drawn regional graphics into a unified data structure, wherein the information related to the regional graphics includes the vertex coordinate data of the graphics, the selected risk level and the input regional name,

[0034] S5.2. Based on the selected database type, use the corresponding database operation interface to accurately save the sorted information to the previously selected database in accordance with the predetermined data format and storage structure for subsequent query, editing and echo operations;

[0035] S5.3. After drawing is completed, if you need to change or delete the drawn graphics, perform the corresponding operations on the GIS map interface, and then the GIS map will automatically synchronize the changes or deletions to the database to ensure that the information in the database is consistent with the content displayed on the map.

[0036] Optionally, when it is necessary to view the completed four-color enterprise risk map, first read the information of all areas of the saved four-color enterprise risk map from the database, including the graphic information, risk level information, name and related information of each area, and then echo the coordinate position of each area, the color corresponding to the risk level and the bound area name on the GIS map based on the read information.

[0037] Furthermore, the GIS map involved provides graphic zooming and panning functions. Users can zoom in and out the map using the mouse wheel to view the risk distribution at different scales, and pan by dragging the map to view the regional information of different locations of the enterprise, thereby analyzing the risk distribution of the enterprise more intuitively and comprehensively.

[0038] Compared with the prior art, the method for online drawing of a risk four-color map of the present invention has the following beneficial effects:

[0039] 1. The present invention realizes the efficient, accurate and convenient online drawing, storage, editing and viewing functions of the four-color enterprise risk map, and provides intuitive and comprehensive data support for enterprise risk assessment and management through visual presentation of risk distribution, helping enterprises to improve their risk management level;

[0040] 2. By selecting a GIS map with the function of custom drawing graphics and free color selection, the present invention enables users to accurately draw corresponding graphics according to the actual shapes of various areas within the enterprise, and fill corresponding colors for areas of different risk levels according to the preset risk level and color correspondence rules. This enables the risk four-color map to accurately reflect the actual risk status of various areas of the enterprise, present the risk distribution in an intuitive and visual way, and help users quickly identify different risk areas;

[0041] 3. Through the GIS map, the present invention allows users to use the address resolution service by inputting detailed addresses, or directly input latitude and longitude coordinates to accurately locate the enterprise location. This flexible positioning method facilitates different users to accurately find the enterprise location based on the information they have, and provides an accurate benchmark for subsequent drawing of graphics in the enterprise area, ensuring the accuracy and pertinence of the drawing of the risk four-color map;

[0042] 4. After drawing the enterprise area graph, the present invention allows the user to input the area name and related detailed information, and binds the area name to the graph through the graph center calculation formula, so that the area name is accurately displayed in the relatively central position of the graph, which not only enriches the information dimension of the risk four-color graph, but also facilitates users to view and identify different areas, thereby improving the readability and practicality of the risk four-color graph;

[0043] 5. After the four-color risk map is drawn by the present invention, the user can easily modify or delete the drawn graphics on the GIS map interface, and these operations will be automatically synchronized to the database to ensure that the database information is consistent with the map display content, so that the four-color risk map can timely reflect the changes in the risk status of the enterprise area, ensuring the real-time and accuracy of risk information;

[0044] 6. The four-color enterprise risk map drawn by the present invention can read information from the database and echo it on the GIS map. At the same time, the GIS map provides graphic zooming and translation functions; through zooming operations, users can view the risk distribution from different scales, view regional detailed information when zooming in, and grasp the overall risk pattern when zooming out; through translation operations, information on different location areas of the enterprise can be viewed; this viewing method enables users to analyze the enterprise risk distribution more comprehensively and in-depth, and provide strong support for enterprises to formulate risk management strategies, resource allocation decisions, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Attached Figure 1 It is a flow chart of the method of embodiment 1 of the present invention. DETAILED DESCRIPTION

[0046] In order to make the technical solution, the technical problem solved and the technical effect of the present invention more clearly understood, the technical solution of the present invention is clearly and completely described below in conjunction with specific embodiments.

[0047] Embodiment 1:

[0048] Combined with Figure 1 This embodiment proposes a method for drawing a risk four-color map online, which includes the following steps:

[0049] S1. Select GIS maps and databases, including:

[0050] Choose a GIS map with the function of customizing graphics and freely selecting colors to meet the needs of drawing graphics and color labeling for drawing risk four-color maps;

[0051] A database is selected based on the characteristics of the data and management requirements to store the relevant information generated in the process of drawing the four-color risk map, including regional graphic information, risk level information and regional name information.

[0052] The GIS map selected in this step can be ArcGIS Online or Mapbox, both of which provide rich and flexible drawing tools and color selection mechanisms. These tools allow users to customize various shapes of graphics on the map through intuitive interactive methods, such as clicking, dragging, drawing lines, etc., to meet the needs of depicting the shapes of different areas when drawing the four-color risk map.

[0053] The databases involved in this step include relational databases and non-relational databases;

[0054] Relational databases store structured data. By creating a data table, the vertex coordinates, risk level, and area name information of the regional graphics are stored in different fields, which is convenient for complex queries and data association operations. Taking the common MySQL database as an example, a data table named "risk_area_info" can be created, in which the "vertex_coordinates" field is used to store the coordinate data of the graphic vertices, and the coordinate value of each vertex is recorded in the form of a string, and multiple vertex coordinates are separated by specific separators (such as commas); the "risk_level" field is used to store risk level information, and different risk levels are represented in the form of numbers or characters (such as 1 for major risk, 2 for greater risk, etc.); the "area_name" field is used to store area name information;

[0055] Non-relational databases store semi-structured or unstructured data and store all information about an area in the form of documents. A document contains the area graphic information, risk level information, and area name information of an area.

[0056] S2. Preset the corresponding rules between risk levels and colors to ensure that when drawing the four-color risk map, the corresponding colors can be accurately filled according to the risk levels of different areas to achieve visual differentiation of risks.

[0057] This step presets the corresponding rules between risk levels and colors, specifically: major risks correspond to red, relatively large risks correspond to orange, general risks correspond to yellow, and low risks correspond to blue. Specifically, red usually gives a strong visual warning and is used to identify high-risk areas that may lead to serious consequences, such as areas where flammable and explosive substances exist and risk management is difficult; the warning level of orange is second only to red, and is used to indicate areas with certain dangers that may cause more serious consequences, such as areas where some dangerous equipment is concentrated and the operating procedures are complicated; yellow is relatively eye-catching and is used to identify areas with relatively low risk levels but still need attention, such as office areas with frequent personnel flow but limited danger levels; blue gives people a relatively peaceful and safe visual experience, and is used to indicate areas with low risks and less impact on corporate operations and personnel safety, such as ordinary storage areas.

[0058] It should be added that in order to help users accurately select the color corresponding to the risk level during the drawing process, a color prompt function can be set in the risk level selection interface. When the user hovers over a risk level option, the corresponding color example and brief description will automatically pop up to inform the user of the color corresponding to the risk level and the general definition and possible impact of the risk level, so as to avoid confusion when the user makes a selection.

[0059] S3. Accurately locate the enterprise location in the selected GIS map, including:

[0060] The user enters the detailed address of the enterprise in the GIS map, such as "XX Street No. XX, XX District, XX City, XX Province", and uses the positioning function of the GIS map to convert the address information into coordinates on the GIS map through the built-in address resolution service, so as to accurately find the location of the enterprise; for example, by calling the address resolution API of Baidu Map, the address is converted into longitude and latitude coordinates, so as to accurately find the location of the enterprise on the map. This method is suitable for most users who can accurately provide the detailed address of the enterprise, which is convenient and fast;

[0061] Alternatively, the user enters the longitude and latitude coordinate information of the enterprise into the GIS map. After the GIS map verifies the format of the coordinate information, it accurately locates the enterprise's location and provides a benchmark for subsequent drawing of regional images. For example, the longitude range should be between -180° and 180°, and the latitude range should be between -90° and 90°. If the coordinate format is correct, the GIS map will accurately locate the enterprise's location on the map based on the input longitude and latitude coordinates. This method is suitable for users who have accurate data on the enterprise's location coordinates, such as professional geographic information staff or the enterprise's planning department. By accurately locating the enterprise's location, it provides an accurate benchmark position for subsequent graphic drawing operations within the enterprise area.

[0062] S4. Draw a graph of a certain area in the enterprise on the selected GIS map and enter the corresponding information, including:

[0063] S4.1. Based on the actual shape of a certain area within the enterprise, use the drawing tools provided by the GIS map to accurately draw a graphic that is the same as the area, ensuring that the graphic can accurately reflect the actual outline of the area; for example, if the area is irregular in shape, you can use the polygon drawing tool. The user clicks on each vertex representing the boundary of the area on the map in turn to draw a polygon with the same shape as the actual area; if the area is a regular rectangle or circle, you can use the rectangle drawing tool and the circle drawing tool to quickly draw it respectively; during the drawing process, the GIS map displays the outline of the drawn graphic in real time, and the user can adjust the graphic by dragging the vertex position, adding or deleting vertices, etc., ensuring that the drawn graphic can accurately reflect the actual outline of the area;

[0064] S4.2. According to the actual risk situation of the area, select a matching risk level from the preset risk levels (major, large, general, and low); in order to assist users in making accurate choices, detailed risk level assessment reference standards are usually provided on the risk level selection interface. For example, for major risks, the standard may be defined as the probability of an accident occurring within a certain period of time in the past (such as one year) is greater than X%, and once an accident occurs, it may cause the death of more than 3 people or cause economic losses of more than X million yuan; for large risks, the probability of an accident is between X%-Y%, which may cause the death of 1-2 people or economic losses of XY million yuan, etc. Users can refer to these standards and accurately select the corresponding risk level in combination with actual factors such as the equipment type, personnel activities, and process flow in the area;

[0065] S4.3. Enter the name and related information for the drawn area graphic. The name may be "R&D Center". Related information may include the functional description of the area (mainly for new product R&D), number of personnel (50 people), equipment list (including various experimental equipment, office computers, etc.), daily activity time (9:00-18:00, Monday to Friday), etc. These detailed information will help to have a more comprehensive understanding of the situation in the area and provide a richer basis for risk assessment and management.

[0066] S4.4. Calculate the center of gravity coordinates of the drawn graphics by using the center of gravity calculation formulas (1) and (2). Bind the calculated center of gravity coordinates to the input area name, thereby achieving a one-to-one correspondence between the area name and the area.

[0067] X=(X 1 +X 2 +…+X i +…+X n ) / n formula (1)

[0068] Y=(Y 1 +Y 2 +…+Y i +…+Y n ) / n formula (2)

[0069] In the formula, (X i ,Y i ) is the coordinate value of any vertex of the drawn figure, and (X,Y) is the coordinate of the center of gravity of the drawn figure.

[0070] For example, for a triangular area, the coordinates of its three vertices are (X1, Y1), (X2, Y2), and (X3, Y3), respectively. The barycentric coordinates X = (X1 + X2 + X3) / 3, Y = (Y1 + Y2 + Y3) / 3. After the barycentric coordinates are calculated, they are bound to the input area name. When the map is displayed, the area name will be based on the barycentric coordinates and displayed in a relatively centered position in the area, thereby achieving a one-to-one correspondence between the area name and the area, making it easier for users to clearly identify each area when viewing the map.

[0071] S5. Save the relevant information of the drawn regional graphics to the database for subsequent query, editing and echo operations, including:

[0072] S5.1. Arrange the information related to the drawn regional graphics into a unified data structure, wherein the information related to the regional graphics includes the vertex coordinate data of the graphics, the selected risk level and the input regional name,

[0073] S5.2. Based on the selected database type, use the corresponding database operation interface to accurately save the sorted information to the previously selected database in accordance with the predetermined data format and storage structure for subsequent query, editing and echo operations;

[0074] S5.3. After drawing is completed, if you need to change or delete the drawn graphics, perform the corresponding operations on the GIS map interface, and then the GIS map will automatically synchronize the changes or deletions to the database to ensure that the information in the database is consistent with the content displayed on the map.

[0075] For example, when the user clicks on a certain area graphic on the GIS map and selects the "Modify" operation, a modification window will pop up on the GIS map, where the user can modify the vertex coordinates of the graphic (by dragging the vertices or redrawing the graphic), the risk level (reselecting from the risk level drop-down menu), the area name, and other related information. After the modification is completed, click the "Save" button, and the GIS map will synchronize the modified information to the database through the interaction mechanism with the database. Specifically, if a relational database is selected, the corresponding UPDATE SQL statement is generated to update the relevant field values ​​of the corresponding area in the database table; if a non-relational database is selected, the corresponding update method (such as MongoDB's update_one method) is used to update the information in the document.

[0076] For example, when the user selects the "delete" operation, the GIS map sends a deletion instruction to the database. Specifically, for a relational database, the DELETESQL statement is executed to delete the records of the corresponding area; for a non-relational database, the corresponding deletion method (such as the delete_one method of MongoDB) is used to delete the corresponding document, thereby ensuring that the information in the database is always consistent with the content displayed on the map.

[0077] S6. Repeat steps S4 and S5, and perform image drawing, information input and saving operations for all areas within the enterprise in turn, and gradually construct a complete four-color enterprise risk map. In actual operation, it can be carried out in a certain order, such as starting from the main production area of ​​the enterprise, and gradually drawing the office area, storage area, etc. When drawing each area, strictly follow the above steps to ensure that the information of each area is accurately recorded and stored. By gradually completing the drawing of all areas, a complete four-color enterprise risk map is constructed, forming a comprehensive and detailed enterprise risk information database.

[0078] When you need to view the completed enterprise risk four-color map, first read the information of all regions of the enterprise risk four-color map from the database, including the graphic information (vertex coordinates, etc.), risk level information, name and related information of each region, and then echo the coordinate position of each region, the color corresponding to the risk level and the bound region name on the GIS map according to the read information. For example, for an area with a risk level of "major risk", the GIS map fills the area graphic with red and displays the area name at the center of the graphic.

[0079] The GIS maps involved provide graphic zooming and panning functions, which are convenient for users to view the risk distribution of the enterprise from different angles and scales. Users can zoom in and out of the map by scrolling the mouse wheel. When zooming in on the map, they can view detailed information in the area, such as equipment layout, personnel distribution, etc.; when zooming out on the map, they can grasp the overall risk distribution pattern of the enterprise. By holding down the left mouse button and dragging the map, you can pan and view regional information at different locations of the enterprise. Through these interactive functions, users can analyze the risk distribution of the enterprise more intuitively and comprehensively, and provide strong support for risk assessment and management decisions. For example, enterprise managers can zoom in on the map to view the specific situation of high-risk areas in order to formulate targeted risk prevention and control measures; they can also pan the map to compare the risk level differences in different areas and rationally plan resource allocation.

[0080] In summary, the method of online drawing of a four-color risk map of the present invention realizes the efficient, accurate and convenient online drawing, storage, editing and viewing functions of the four-color enterprise risk map, and provides intuitive and comprehensive data support for enterprise risk assessment and management by visually presenting risk distribution, thereby helping enterprises to improve their risk management level.

[0081] The above specific examples are used to explain the principles and implementation methods of the present invention in detail. These examples are only used to help understand the core technical content of the present invention. Based on the above specific embodiments of the present invention, any improvements and modifications made by technicians in this technical field without departing from the principles of the present invention should fall within the scope of patent protection of the present invention.

Claims

1. A method for drawing a risk four-color map online, characterized in that: The steps include: S1. Select GIS maps and databases; S2. Preset the corresponding rules between risk levels and colors to ensure that when drawing the four-color risk map, the corresponding colors can be accurately filled according to the risk levels of different areas to achieve visual differentiation of risks; S3. Accurately locate the enterprise location in the selected GIS map; S4. Draw a graph of a certain area in the enterprise in the selected GIS map and enter the corresponding information; S5, saving the relevant information of the drawn regional graphics to the database for subsequent query, editing and echo operations; S6. Repeat steps S4 and S5, perform image drawing, information input and saving operations for all areas within the enterprise in turn, and gradually construct a complete four-color enterprise risk map.

2. The method for drawing a risk four-color map online according to claim 1, characterized in that: The step S1 specifically includes: Choose a GIS map with the function of customizing graphics and freely selecting colors to meet the needs of drawing graphics and color labeling for drawing risk four-color maps; A database is selected based on the characteristics of the data and management requirements to store the relevant information generated in the process of drawing the four-color risk map, including regional graphic information, risk level information and regional name information.

3. The method for drawing a risk four-color map online according to claim 2, characterized in that: The database includes a relational database and a non-relational database; Relational databases store structured data. By creating data tables, the vertex coordinates of regional graphics, risk levels, and regional name information are stored in different fields, making it easier to perform complex queries and data association operations. Non-relational databases store semi-structured or unstructured data and store all information about an area in the form of documents. A document contains the area graphic information, risk level information, and area name information of an area.

4. The method for drawing a risk four-color map online according to claim 2, characterized in that: Execute step S2 to preset the corresponding rules between risk levels and colors, specifically: major risk corresponds to red, relatively large risk corresponds to orange, general risk corresponds to yellow, and low risk corresponds to blue.

5. The method for drawing a risk four-color map online according to claim 2, characterized in that: When executing step S3, The user enters the detailed address of the enterprise in the GIS map, and uses the positioning function of the GIS map to convert the address information into coordinates on the GIS map through the built-in address resolution service, so as to accurately find the location of the enterprise; Alternatively, the user enters the longitude and latitude coordinate information of the enterprise into the GIS map. After the GIS map verifies the format of the coordinate information, it accurately locates the enterprise and provides a benchmark for the subsequent drawing of the regional image.

6. The method for drawing a risk four-color map online according to claim 5, characterized in that: The step S4 specifically includes: S4.

1. Based on the actual shape of a certain area within the enterprise, use the drawing tools provided by the GIS map to accurately draw a graphic that is identical to the area, ensuring that the graphic accurately reflects the actual outline of the area; S4.

2. According to the actual risk situation of the area, a matching risk level is selected from the preset risk levels; S4.

3. Enter a name and related information for the drawn area graphic; S4.

4. Calculate the center of gravity coordinates of the drawn graphics by using the center of gravity calculation formulas (1) and (2). Bind the calculated center of gravity coordinates to the input area name, thereby achieving a one-to-one correspondence between the area name and the area. X=(X1+X2+…+X i +…+X n ) / n formula (1) Y = (Y1 + Y2 + ... + Y i +...+Y n ) / n Formula(2) In the formula, (X i ,Y i ) is the coordinate value of any vertex of the drawn figure, and (X,Y) is the coordinate of the center of gravity of the drawn figure.

7. The method for drawing a risk four-color map online according to claim 6, characterized in that: The step S5 specifically includes: S5.

1. Arrange the information related to the drawn regional graphics into a unified data structure, wherein the information related to the regional graphics includes the vertex coordinate data of the graphics, the selected risk level and the input regional name, S5.

2. Based on the selected database type, use the corresponding database operation interface to accurately save the sorted information to the previously selected database in accordance with the predetermined data format and storage structure for subsequent query, editing and echo operations; S5.

3. After drawing is completed, if you need to change or delete the drawn graphics, perform the corresponding operations on the GIS map interface, and then the GIS map will automatically synchronize the changes or deletions to the database to ensure that the information in the database is consistent with the content displayed on the map.

8. The method for drawing a risk four-color map online according to claim 7, characterized in that: When you need to view the completed enterprise risk four-color map, first read the information of all areas of the saved enterprise risk four-color map from the database, including the graphic information, risk level information, name and related information of each area, and then echo the coordinate position of each area, the color corresponding to the risk level and the bound area name on the GIS map based on the read information.

9. The method for drawing a risk four-color map online according to claim 8, characterized in that: GIS maps provide graphic zooming and panning functions. Users can zoom in and out the map using the mouse wheel to view the risk distribution at different scales, and pan the map by dragging it to view regional information at different locations of the enterprise, thereby analyzing the risk distribution of the enterprise more intuitively and comprehensively.

Images